diff options
Diffstat (limited to 'gr-analog/python/analog/standard_squelch.py')
| -rw-r--r-- | gr-analog/python/analog/standard_squelch.py | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/gr-analog/python/analog/standard_squelch.py b/gr-analog/python/analog/standard_squelch.py index 3ed9ebceaa..9609f2449e 100644 --- a/gr-analog/python/analog/standard_squelch.py +++ b/gr-analog/python/analog/standard_squelch.py @@ -1,3 +1,5 @@ +from __future__ import division +from __future__ import unicode_literals # # Copyright 2005,2007,2012 Free Software Foundation, Inc. # @@ -26,29 +28,29 @@ from gnuradio import filter class standard_squelch(gr.hier_block2): def __init__(self, audio_rate): - gr.hier_block2.__init__(self, "standard_squelch", - gr.io_signature(1, 1, gr.sizeof_float), # Input signature - gr.io_signature(1, 1, gr.sizeof_float)) # Output signature + gr.hier_block2.__init__(self, "standard_squelch", + gr.io_signature(1, 1, gr.sizeof_float), # Input signature + gr.io_signature(1, 1, gr.sizeof_float)) # Output signature self.input_node = blocks.add_const_ff(0) # FIXME kludge self.low_iir = filter.iir_filter_ffd((0.0193,0,-0.0193),(1,1.9524,-0.9615)) self.low_square = blocks.multiply_ff() - self.low_smooth = filter.single_pole_iir_filter_ff(1/(0.01*audio_rate)) # 100ms time constant + self.low_smooth = filter.single_pole_iir_filter_ff(1 / (0.01*audio_rate)) # 100ms time constant self.hi_iir = filter.iir_filter_ffd((0.0193,0,-0.0193),(1,1.3597,-0.9615)) self.hi_square = blocks.multiply_ff() - self.hi_smooth = filter.single_pole_iir_filter_ff(1/(0.01*audio_rate)) + self.hi_smooth = filter.single_pole_iir_filter_ff(1 / (0.01*audio_rate)) self.sub = blocks.sub_ff(); self.add = blocks.add_ff(); self.gate = blocks.threshold_ff(0.3,0.43,0) - self.squelch_lpf = filter.single_pole_iir_filter_ff(1/(0.01*audio_rate)) + self.squelch_lpf = filter.single_pole_iir_filter_ff(1 / (0.01*audio_rate)) self.div = blocks.divide_ff() self.squelch_mult = blocks.multiply_ff() - self.connect(self, self.input_node) + self.connect(self, self.input_node) self.connect(self.input_node, (self.squelch_mult, 0)) self.connect(self.input_node,self.low_iir) @@ -66,7 +68,7 @@ class standard_squelch(gr.hier_block2): self.connect(self.sub, (self.div, 0)) self.connect(self.add, (self.div, 1)) self.connect(self.div, self.gate, self.squelch_lpf, (self.squelch_mult,1)) - self.connect(self.squelch_mult, self) + self.connect(self.squelch_mult, self) def set_threshold(self, threshold): self.gate.set_hi(threshold) @@ -75,4 +77,4 @@ class standard_squelch(gr.hier_block2): return self.gate.hi() def squelch_range(self): - return (0.0, 1.0, 1.0/100) + return (0.0, 1.0, 1.0 / 100) |